External Repair of Joints along with treatment of leakages of 2800 mm dia RC pipe Externally using chemical agents/compounds on select locations between Teela Morh and Tail Reach

External Surface Repair

Dewatering from ditches, pits and trenches around 2800 mm Dia RC pipeline including hiring of pump set of. diesel operator etc. complete & suction pipe & delivery etc. complete.

Cleaning of Joints including removing of baker rod, filling and all other loose materials from the expansion joint and clean the surface around the joint to make it free from loose particles,dirt,oil,grease etc and disposal of malba/debris outside of pipeline including all labour,T&P etc complete.

Drilling and fixing injection packers in RC members including, Drilling Holes: Drilling holes in structural members at intervals as per the recommendation of the engineer in charge. Cleaning of holes: Clean the holes with an air blower before fixing nozzles. Fixing of Packers: Insert 12 mm dia., 50~75 mm long injection packers in cleaned holes with moisture insensitive epoxy resin-based putty or equivalent. Cutting of Packers: Cut the Packers by wheel after grouting completion without damaging structural elements. Patching Hole:- After cutting off the packer we patch the hole on epoxy putty.

Supply and application of single component, Polyurethane Injection foam based system for wet conditions and temporary sealing, which cures to a dense flexible foam with a fine cellular structure. Minimum Product Requirements: Viscosity cps 500-1300 at 23°C.

Supply and application of 2 components, elastic, low viscous, solvent-free, Polyurethane Injection resin based system for permanent sealing, that does not need the presence of water for hardening reaction Product Requirements: The viscosity of the mixture < 100 mPa*s (at +20°C) Capable of penetrating cracks>0.2mm wide with a CE Marking (European Conformity) -> Conformance label that the product is approved to the essential requirements and under market surveillance.

Repairing the edges of the joint (in case of weak concrete at the joint edge) and also configuring the joint width (in case of expansion joints with irregular width more than the width of the chosen Sikadur Combiflex Tape width) with epoxy repair mortar Sikadur 31 and Sikadur 41/ Sika Latex or its equivalent.

Filling the joints with Polystyrene baker rod of the size next higher to the joint gap and apply Polyurethane based sealant in the expension joint up to a depth equal to not less than 1/2 the width of the joint including insert of bitumen impregnated board as filling material,T&P etc. complete.

Making scaffolding and dismantling the same after completion of work including cost of material, labour, T&P, transportation etc. required for proper completion of work.

Cleaning of big jhund, bush, wood plants upto 3.0m height including uprooting of rank vegetations etc. and including disposal of same within 250m distance.

Cutting of branches of trees along the pipe line including all labour, T&P and scaffolding etc. rerquired for proper completion of work.

Labour cess@1%